These are treated as equivalent — use either form in your search:

You type		Also matches	Meaning
log	⟷	\ln \log	Logarithm
sin	⟷	\sin	Sine function
cos	⟷	\cos	Cosine function
tan	⟷	\tan	Tangent function
lim	⟷	\lim \to	Limit
sum	⟷	\sum \Sigma	Summation
integral	⟷	\int \oint	Integration
infinity	⟷	\infty	Infinity symbol
sqrt	⟷	\sqrt	Square root
pi	⟷	\pi	Pi constant
theta	⟷	\theta	Theta variable
alpha	⟷	\alpha	Alpha variable
derivative	⟷	\frac{d}{dx} \partial	Differentiation
matrix	⟷	\begin{pmatrix}	Matrix / determinant
>=	⟷	\geq	Greater or equal
<=	⟷	\leq	Less or equal
!=	⟷	\neq	Not equal
forall	⟷	\forall	Universal quantifier
exists	⟷	\exists	Existential quantifier

• Text mode: use natural language — "eigenvalue of symmetric matrix"
• LaTeX mode: type exact formulas like \int_0^1 x^2 dx
• Keywords: add keywords in LaTeX mode to narrow results
• Mixed math: use $ signs in text search for inline LaTeX, e.g. "solve $x^2+1=0$"
• Operators: try "derivative" instead of "differentiation" — both work

• Quality Check: AI analyzes your results and suggests better queries
• Suggestions: get related math topics and alternative searches
• Refresh: find gaps in your results and discover new angles
• Explain: get plain-language explanation of any LaTeX formula
• AI Summary: click any result to get an AI-generated mathematical summary

• Multi-engine: results combine StackExchange, Approach Zero, Google & MathOverflow
• BM25 ranking: results are scored by relevance, votes, and formula similarity
• 12 sorting modes: relevance, votes, hot score, quality, formula density, and more
• Autocorrect: typos like "eigenvlaue" are automatically fixed to "eigenvalue"
• Structural matching: \frac{a}{b} matches \frac{x}{y} by tree structure